Railway-car truck.



Patenfed July 4, 1916.

INVENTOR 3 SHEETSeSHEET 1.

WITNESSES E- W. SUMMERS.

RAILWAY CAR TRUCK.

APPLICATION FILED APR-15,1316.

-.Patented July 1916.

' 3 SHEETS-SHEET 2.

INVENTOR E..W. SUMMERS J RAILWAY CAR TRUCK.

APPLICATION FILED APR.15. I916.

latvntcd July 1, 191.6.

3 SHEETSSHEET 3.

IIIH

WITNESSES INVENTOR j meaeav. I

To all whom it may concern Be it known that I, EDGAR\W. SUMMFIR'S,

a resident of Pittsburgh, in theacflqlntyfof Allegheny and State of Pennsyl 'a,

' ing is 'a specification.

This invention relates" to side frames for" railway car trucks and journal box there I flange section andpreferably of a symmetri- One object of the invention is to provide I a truck side frame'of the arch bar type formed as an integral casting and so con-p structed as to have the journal box secured" directly thereto and the parts so arranged jthat the centers of gravity orneutral'axes a A y of the tension and compressionmembers 1ntersect above the center of rotation ofthe Further ob'ects of the invention willaps pear from the description and-claims hereinafter made.

,In the accompanying drawings, Figure 1 is aside elevationofthe preferred form'of truck side frame and journal box, the latter being shown with the lid removed; Fig.

2 is a crosssection on the line 2"2, Fig.1;

Fig. 3 is a plan viewof the end portion-of the frame and the box;'Fi'g. 4, is avertical transverse section through the side frame and a longitudinal section through the journal box on the 1ine 4 4, Fig. .1.;.Fig. 5 is an end elevation of the journal box, showing the lid in place; Fig.-6 is a sideelevation 1 of the journal box," showing the end portion.

of the side frame inend elevation: Fig. 7

is 'a longitudinal section of theside frame and transverse section ffthe journal box on the line 77, Fig. 4; Fig. -8 is a clan view of one half of the lower section of the io'ur-Q nal box; Fig. 9 isan enlarged section through the lid; and Fig. 10 is-a side eleva-. l tion of the end portion of the side frame and a vertical section {through the journal box, showingia modification;

' The truck, side frame :is of the arch bar' type and comprises the upwardly bowed or arched compression member; and

' downwardlybowed-tension member 2, the

latterhaving its "central portion, as at 3,

Specification of wa Patent.

J have 1 invented a new and useful Improvement in- Railway-Car Trucks, of which the follow-.-

RAILWAY-can annex.

Patented July 4:, 1916.

Applicat i en liledApril l a,191d. S:eria.1'No;9 1, 342.

mailedon an mpr a circle or catenary curva' andrwith the end portions extending from said curved portions as true tangents,

"together with column post members 4 interposed between the spread-apart central porbers.,- ,Allv of these parts are formed as an integralcastlng, such as of cast steel. The tension and compression members ,are of tions oithe compression and tension memter of rotation ofthe axle 8. I The (lOW11- .wardly projecting flanges on'the: compres sion member and the upwardly, projecting;

flanges on the tension member are slightly,

widened out toward the united end. portion and are united to form ,inIelfecfia-guSSBt member 9 for strengthening the end fpor tion. The upwardly projecting-flanges of thecompression member are also preferably widened toward the end portion, as at 16%, to

give the necessary strength because of the necessary absence at this portion "off the frame of the downwardly projecting flanges. The downwardly projectinglflanges of the tension'member, inside of the j ournal," 1 box position are also preferably widened,

and curved downwardly, as at 6, to form a seat toroeive a block against which-ajack maybeset for the-purpose of lifting the side frame. These portions preferably are :curved downwardly, as shown, to foricr'i-v dentalslipping of the jack. Thejend tion of thesaid'frame is provided with reentrant' SeatiXlO for the,- jou n ox j shown as curvedfrom side",to' "side, in Figs.-

1 and 7,and-. of substantially'roof sha ein V 'Fig; 10, .saidjseat-jand top in; both: orms being offsymmetric'al shape" on each side of the longitudinal axis of thecjournal Qb0x -'so that;thefijournal-box can be interchangeably used at "either end of the side frame. The curved or anglefshaped seats form in eifectrflaring shallow pedestal jaws.

der that: the-tension member of the side.

frame can be made to pass as close as possible to the journal box and thereby bring the point of intersection of the neutral axes of the tension and compression members as low down as possible directly over the center of the axle. This journal box, at least on its upper surface, is circular in cross section, and 'is substantially of the form of two truncated cones with their bases united at the central transverse zone of the box, so that it loosely fits inthe seat in the side frame and has a bearing in said seationly at its central zone, thus permitting it torock either in a horizontal or a vertical plane, so

as to hold the journal box in alinement with the axle journal to compensate for inequalities of track and yielding of thetruck frame. against rotation and also displacement, the seat 10 at its central portion is providedwitha recess 12, the top of which is substantially straight or horizontal from end to end, longitudinally of the side frame, and the top of the journal box at its central zone is provided with an upward projection 13 havinga horizontal top and extending into saidrecess and having .a bearing against the-top thereof. This projection is slightly higher than the top of the box immediately outside and inside of the same, and is lo cated at the central transverse zone of the box, that is to say, substantially at the meeting of the bases of the two truncated cones, so that the side frame has a bearing on the box only at its middle portion, thus-permitting the box to rock slightly on its cen tral zone, as above described, and the load is carried entirely at the central transverse zone of the box (the box having no direct contact with the seat in the side frame at its end portions,) as a result of which the load is uniformly distributed over the entire length of the" axle journal.

In the design illustrated inFigs. 1 to 9, the usual wedge or'key is omitted, and the journal hearing or brass 1 1 fits directly against the roof ofthe box. This journal bearing is held in place by being provided midway of its length with upwardly projecting portions or lugs 16 which extend into pockets or recesses 17 formed in the roofvof the box at its central portion, and

which recesses are" made possible because of the upwardly projecting portion or lug 13 on the top of the box. This brass has both its inner and outer surfaces of semicircular shape in cross section, but with theupper surfacestruck from a center farther out than its inner surface, and consequently eccentric thereto and providing a bearing thicker at its longitudinal middle portion than at its edge portions.

emergency connection between the box and side frame is provided by means of a pin 18 extending through perforated lugs In order to hold said journal box sections of the box.

end of the journal box. This is an advantage when the truck side frame is lifted together w th the journal box and axle, asit brings the suspension for the journal box and axle more directly over the load than i when the emergency connection is located at the outer end of the journal box, as will be apparent.

The journal box illustrated in Figs. 1 to 9 is'formed in two separable sections, the

line of division'b'eing substantially at the horizontal plane of the center of the axle,"

and said sections are united by means of pins 21 extending throughperforated lugs 22 on the top section and similar lugs 23 on the bottom section. If eitherpin is removed the bottom section will swing downwardly around the other pin as a hinge. The meeting faces of these two sections are formed sinuous, so as to provide grooves or gutters 24 in the bottom section, said faces being so formed that the walls 25'on the inner sides of said grooves are lower than the walls 26 on the outer side of said grooves in order that the oil which will work into said grooves or gutters will flow into the box rather than to the outside. At the rear or .inner end of the box is a dust-guard pocket 27, and because the box is made in two separable sections, this pocket is entirely inclosed, that is, inclosed at the top as well as at the bottom and sides, The grooves or gutters 2 1 in'the bottom section open this dust-guard pocket, and the inner wall 28 of said pocket is lower than the outer wall 29 thereof, so that any oil which flows from the grooves or gutters 21 into the pocket, will flow into the 1002'; instead of to the outside.

The journal box is of substantially circular interior section, and consequently the dustguard pocket 27 as well as the dust guard 30 therein, are circular, which permits said .dust

guard to rotate to some extent and carry oil,

which may accumulate in the bottom of the pocket, all around, so that the oil, together with the dust which naturally is caught by the oil, form a practically tight seat at the i'ea'rend of the box. Dust will also be caught by oil whichwill work into the grooves or gutters 24, and thus form a substantially tight seal along the meeting edges of the two Oil will almost cer tainly get into the grooves 24 and from the same into the dust-guard pocket, as it will naturallybe carried up by the rotation of the axle and scrapped oif from the axle by the lower edge of thebrass, from which it will flow by gravity and capillary attractioninto the joints between the two sections of the box, and as the oil will collect or hold the dust, a gummy seal will be formed. The dust guard is preferably of librous construction, such as being built upjro'm layers of canvas or the like, which can be held by a sheet metal grooved ring 31.

j The outer end of the journal box is closed by a circular lid 32 which is united at its center by means of stud 33' to a lever 34: hinged to lugs 35 on the top of the box. The lever 34 carries a spring 36 hearing against a cam-faced lug 37 on the journal box,by means of which the lid will be held either in tightly closed position or in open. or elevated position, as is common in journal box lids. This lid is preferably provided on its peripheral edge with a suitable gasket 38,

which, also, preferably will be of fibrous construction, such as formed of layers of canvas held by a wire ring 39 which issuitably clamped in the edge of said lid.

The journal bearing or brass 15 at its ends is substantially of semi-circular form, thus bringing it down practically to the center of the. axle, and-providing about more end thrust bearing than brasses as heretofore constructed, which prevents the brasses from wearing as rapidly as brasses as. heretofore made, and increasing the life thereof. With standard journal boxes it is not possible to makea brass of such shape as to come down to the center of the axle as it is impossible to remove the brass if made that large, but with a separable box, such as illustrated and described, this diliiculty is entirely avoided and the brass can be made to extend downon the sides of the axle to or beyond the center.

Fig. 10 illustrates a modification having" substantially the same integral side frame as shown in Fig. lexcept' thatflthe journal box seat in the end-thereof (and the roof of the journal box fitting into "said seat) are.

made substantiallyangular, that is,of roof shape. The journal box in this form is of;

the integralor non s'ectional type and is} secured to the sid'effra'me by meansof rivets. 40

and 41, as in my c'o-. pending application, Se-

rial, No: 71,779, filed January 12,- 1916. The rivet 41 passes'through theweb of the tension membenand to permit access thereto, the web of the compression member is provided with an opening 42, The inner-ends of the rivets extend into pockets 43 formed in the upper angles of the ournal box. This form of journal box 'is designed to be used with the standard wed es and brasses, being provided on its side wa s'with inwardly pro j ecting lugs 44 to hold the wedges and brass.

Preferably also the lower portion of the journal'box istied to the central portion of the side frame by means ofa bar 45, which bar is riveted to a lug 46 on the bottom of the box. Preferably the box will be'provided with similar lugs 46 on both sides so as to be interchangeable betweenfthe two ends of the side frame.-

.Both forms of side-frame illustrated are on'the axle center. In the form shown, Figs. 1 to 9, the vertical height of the journal ,box is materially reduced over standard types, as

a result of which the ends of the side frame are carried low, resulting in better stress conditions 1n the side frame.

' What-I claim is v bars due to an eccentric support of the load- 1. A railway car truck side frame-of the' arch bar type formed as anintegralcasting' comprising a compression member and a tensionmember each of I-beam cross section 5 having the web horizontal and the flanges I vertical.

2. A railway car truck side frame of the arch bar type formed as an integral casting comprising acompression member and a tension member and provided in their united end portion with a journal box seat, the parts being arranged that the centers of gravity or neutral axes of the tension and compression members'intersect directly above the center of rotation of the axle.

' 3. A railway car truck side frame of-the arch bar type formed as an integral casting comprising acompression member and a tension. member each of flanged cross section having the web horizontal and the flanges vertical and provided with a journal box seat'in their united end portion, said parts being so arranged that the centers of gravity 4; A railway car truck side frame of-the having the web horizontal and flanges vertical and provided in their united end poriio '01 neutral .axes of the tension and compression' members intersect directly above the .centerpf rotation of the axle.

Larch bar type formed as an integral casting comprising acompress onmember and a ten- S1011 member each of I-beam cross sectlon tion with a journal box-seat, the parts beingso arranged thatthe centers of gravity or;

neutral axes of the tension and compression vmembers intersect directly above the center of rotation 'ofthe axle.

5. A railway car truckside frame of the arch bar type formed as an integral casting and comprising a tension member and a compression-member eachof I-beam cross section having the web. horizontal and the flanges vertical and provided in their united end portion with a journal box seat, the downwardly projecting flanges of the tension member being formed to provide a jacking seat adjacent to the journal box seat.

. tion of said seat extending longitudinally of the side frame and a journal box having a semicircular top and loosely fitting said seat and provided with a horizontal portion projecting above its top and extending transversely of the box and having a bearing'in the recess in the side frame. v j a 8. In combinatlon, a truck side frame .pro-

vided in its end portion with a semicircular rentrant journal box seat and having a. recess extending longitudinally of the side frame and provided with a horizontal top,

and a journal box cooperating with said seat and lnving its upper surface circular in cross section and provlded with a pro ection provided-with a horizontal top having a bearing in the recess in the side frame.

9. In combination, a truck side frame provlde'din its end portion with a sen lclrcular rentrant journal box seat and having a recessextending longitudinally of the side frame and provided with a horizontal top, and a journal box cooperating with said seat and having its upper surface circular in cross section and provided with a vertical projection located midway of the length of the journal bearing the box and provided with a horizontal top having a bearing ,in the recess in the side frame.

10. In combination, a truck side frame provided in its end portion with a semicircular rentrant journal box seat with a recess arranged longitudinally of the, side frame and extending above said seat and provided with a horizontal top, and a journal box having its upper surface circular in cross section and cooperating with the journal box seat and provided with a transverse lug projecting above its circular top and having a horizontal top contacting'with the horizontal top wall of the recess in the side frame.

ing the upper surface of its top circular cross section, and being larger at its middle zone that at its ends andcontacting with the journal box seat at its middle zone only.

12. The combination of a truck side frame provided at its end portion with a journal box seat, a journal box in said seat and provided on its top with a higher portion forming a'bearing against said side frame, and a loose emergency connection between said frame and box.

sion members extended toa meeting point vertically over the center of rotation of the a '75 13. The combination of a truck side frame axle, the said neutral axes of the tension member passing close to the curved top of the journal box.

15. A railway car truck side frame of the arch bar type formed as an integral casting comprising a compression member and a.

tension member each of I-beam cross section having the web horizontal and'the flanges vertical, the Web of the tension member extending under the central portion of the frame in the form of a circle or catenary curve. i

p 16. A railway ca r truck side frame of the arch bar type formed as an integral casting comprising a compression member. and a tension member each of flanged cross section having the web horizontal and the flanges vertical and provided with a journal box seat in their united end portion, said parts being so arranged that the centers of gravity or neutral axes of the tension and compression members intersect directly above the center of rotation of the axle, the web of 'the tension member extending under the central portion of the frame in the form of a circle or catenary curve.

In testimony whereof, Ihave hereunto .my hand.

=EDGAR'W. SUMMERS.

Witnesses:- i

' GLENN H. LEREsoHn,

4 C. B. SANDERSON. 

